CH125632A - Process for the production of a new sulfur dye. - Google Patents

Process for the production of a new sulfur dye.

Info

Publication number
CH125632A
CH125632A CH125632DA CH125632A CH 125632 A CH125632 A CH 125632A CH 125632D A CH125632D A CH 125632DA CH 125632 A CH125632 A CH 125632A
Authority
CH
Switzerland
Prior art keywords
production
sulfur dye
new
dye
new sulfur
Prior art date
Application number
Other languages
German (de)
Inventor
Gesellschaft Fuer Chemis Basel
Original Assignee
Chem Ind Basel
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chem Ind Basel filed Critical Chem Ind Basel
Publication of CH125632A publication Critical patent/CH125632A/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B49/00Sulfur dyes
    • C09B49/10Sulfur dyes from diphenylamines, indamines, or indophenols, e.g. p-aminophenols or leucoindophenols

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)

Description

  

  Verfahren zur Herstellung eines neuen     Schwefelfarbstoffes.       Es wurde gefunden,     d'ass    man .einen neuen  Schwefelfarbstoff erhält, wenn man das       Leukoderivat    des Indophenols, das erhalten  wird durch Kondensieren eines Gemisches,  bestehend aus gleichen Teilen     Carba.zol    und       N-Äthyloarba.zol,    mit     Nitrosophenol,    in Ge  genwart von Harnstoff schwefelt. Der  neue Farbstoff stellt ein dunkles Pulver dar,  welches sich in konzentrierter     Schwefelsäure     mit graublauer Farbe löst. Er liefert eine  gelbe     Hydrosulfitküpe    und färbt Baum  wolle in     grünlichblauen    Tönen an.

   Die  Färbungen sind sehr gut licht-. und wasch  echt und     besitzten    gute Chlorechtheit.         Beispiel       <B>28</B> Teile des Indophenols, welches man  durch     Kondensieren    einer     Mischung    von glei  chen Teilen     N-Äthylcarbazol    und     Carbazol     mit     Nitrosophenol    erhält; -werden in Form  einer zirka. 20     %igen    Paste in eine konzen  trierte     Poly        sulfidlösung,    bestehend aus 29  Teilen kristalliiertem     Na.triümsulfid,    12 Tei  len Schwefel und 15 bis 20 Teilen Wasser,  eingetragen.

   Diese Mischung wird so lange  gerührt, bis das Indophenol vollständig re  duziert ist. Hierauf     gibt    man der Masse  12 Teile Schwefel     und    20 Teile Harnstoff zu    und trocknet im Vakuum. Das zerkleinerte  Produkt wird in einem geeigneten Ofen auf  200 bis 220   erwärmt, bis die Schwefelwasser  stoffentwicklung aufgehört hat. Nach dem  Erkalten wird die Masse fein pulverisiert,  mit einer verdünnten     Natriumsulfidlösung     extrahiert, mit Wasser und verdünnter Salz  säure     gewascben    und getrocknet.



  Process for the production of a new sulfur dye. It has been found that a new sulfur dye is obtained if the leuco derivative of indophenol, which is obtained by condensing a mixture consisting of equal parts of Carba.zol and N-Äthyloarba.zol, with nitrosophenol, in the presence of Urea is sulphurous. The new dye is a dark powder that dissolves in concentrated sulfuric acid with a gray-blue color. He delivers a yellow hydrosulfite vat and dyes cotton in greenish-blue tones.

   The colorations are very light. and wash real and have good chlorine fastness. Example 28 parts of the indophenol, which is obtained by condensing a mixture of equal parts of N-ethylcarbazole and carbazole with nitrosophenol; -be in the form of an approx. 20% paste in a concentrated poly sulfide solution, consisting of 29 parts of crystallized Na.triümsulfid, 12 parts of sulfur and 15 to 20 parts of water, registered.

   This mixture is stirred until the indophenol is completely reduced. Then 12 parts of sulfur and 20 parts of urea are added to the mass and it is dried in vacuo. The crushed product is heated to 200 to 220 in a suitable oven until the evolution of hydrogen sulphide has ceased. After cooling, the mass is finely pulverized, extracted with a dilute sodium sulfide solution, washed with water and dilute hydrochloric acid and dried.

 

Claims (1)

PATENTANSPRUCH: Verfahren. zur Herstellung eines neuen Schwefelfarbstoffes, dadurch gekennzeichnet, da.ss .man das Leukoderivat des Indophenols, da"- erhalten wird durch Kondensieren eines Gemisches, bestehend aus gleichen Teilen Ca.rbazol und N-Äthylca,rbazol mit Nitroso- phenol. in Gegenwart von Harnstof f schwefelt. Der neue Farbstoff stellt ein dunkles -Pulver dar, welches sich in kon zentrierter Schwefelsäure mit graublauer Farbe löst. PATENT CLAIM: Process. for the production of a new sulfur dye, characterized in that the leuco derivative of indophenol is obtained by condensing a mixture consisting of equal parts Ca.rbazole and N-ethyl ca, rbazole with nitrosophenol. in the presence of The new dye is a dark powder which dissolves in concentrated sulfuric acid with a gray-blue color. Er liefert eine gelbe Hydrosulfit- küpe und färbt Baumwolle in grünlich blauen Tönen an. Die Färbungen sind sehr gut licht- und waschecht und besitzen gute Chlorechtheit. It delivers a yellow hydrosulphite vat and dyes cotton in greenish blue tones. The dyeings are very lightfast and washfast and have good chlorinefastness.
CH125632D 1926-11-13 1926-11-13 Process for the production of a new sulfur dye. CH125632A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH105237T 1926-11-13
CH125632T 1926-11-13

Publications (1)

Publication Number Publication Date
CH125632A true CH125632A (en) 1928-04-16

Family

ID=25706850

Family Applications (1)

Application Number Title Priority Date Filing Date
CH125632D CH125632A (en) 1926-11-13 1926-11-13 Process for the production of a new sulfur dye.

Country Status (1)

Country Link
CH (1) CH125632A (en)

Similar Documents

Publication Publication Date Title
CH125632A (en) Process for the production of a new sulfur dye.
CH125631A (en) Process for the production of a new sulfur dye.
CH125630A (en) Process for the production of a new sulfur dye.
CH125123A (en) Process for the production of a new sulfur dye.
CH122272A (en) Process for the production of a sulfur dye.
DE542176C (en) Process for the preparation of indigoid dyes
DE445729C (en) Process for the preparation of Bz-2-oxybenzanthrone
CH125368A (en) Process for the production of a sulfur dye.
DE568035C (en) Process for the preparation of a gray Kuepen dye of the thionaphthenindolindigo series
CH119389A (en) Process for the production of a sulfur dye.
CH125366A (en) Process for the production of a sulfur dye.
CH125365A (en) Process for the production of a sulfur dye.
CH125367A (en) Process for the production of a sulfur dye.
CH150798A (en) Process for the preparation of a dye of the anthraquinone series.
CH160443A (en) Process for the production of a vat dye.
CH109648A (en) Process for the production of a new vat dye.
CH119383A (en) Process for the production of a sulfur dye.
CH292304A (en) Process for the production of a vat dye.
CH157561A (en) Process for the preparation of a vat dye of the anthraquinone series.
CH109641A (en) Process for the production of a new vat dye.
CH189873A (en) Process for the production of a new sulfur-containing dye.
CH144305A (en) Process for the production of a vat dye of the pyrazole anthrone series.
CH119386A (en) Process for the production of a sulfur dye.
CH133103A (en) Process for the production of a new chromium-containing azo dye.
CH145046A (en) Process for the preparation of a vat dye of the anthraquinone series.